Skip to content

Back of the Box Builds

LEGO Alternate Builds!

SETS
- Adventurers
- Aquazone
- Belville
- Building Set with People
- Castle
- Duplo
- Fabuland
- Harry Potter
- Holiday and Event
- LEGOLAND
- Model Team
- Pirates
- Space
- Star Wars
- Technic
- Town
- Universal Building Set
- Western
- More Sets
- Misc
USEFUL LINKS
THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

Classic Space Classic Space Sets Official Sets Small Builds

6872: Xenon X-Craft

October 19, 2019October 19, 2019 Master Builder 5421 Views

Year Released: 1985
Bricklink

Back A
Back B
Back C
Back D

← 607 – Back C
6872 – Back A →

You May Also Like

6497: Twisted Time Train

March 17, 2025March 17, 2025 Master Builder

5948: Desert Expedition

October 8, 2024October 8, 2024 Master Builder

6311: Curved Road Plates

October 10, 2022October 10, 2022 Master Builder

6929 – Back A

March 30, 2023April 3, 2023 Master Builder

6985: Cosmic Fleet Voyager

September 12, 2019August 16, 2023 Master Builder

6039 – Back A

August 18, 2023August 22, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Airport Classic Town Official Sets Race Small Builds Super Model Town

Super Stunt Machine

March 8, 2025March 10, 2025 Master Builder

Year Released: 1990BricklinkInstructions This is a super model set made by combining sets: 1560: Glory Glider1561: Stunt Chopper1562: Wave Jumper1563:

ABCs Blacktron II Blacktron II Sets Jørn Thomsen Large Builds Official Sets Space

6981: Aerial Intruder

September 22, 2019August 15, 2023 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6661: TV Van (Mobile TV Studio)

February 3, 2022February 3, 2022 Master Builder

ABCs Bjarne Tveskov Blacktron Blacktron Sets Large Builds Official Sets Space

6954: Renegade

September 7, 2020October 16, 2024 Master Builder

Alpha Team Alpha Team Sets Medium Builds Mission Deep Sea Official Sets

4794: Alpha Team Command Sub

February 12, 2024February 21, 2024 Master Builder

Chamber of Secrets Harry Potter Harry Potter Sets Medium Builds Official Sets

4719: Quality Quidditch Supplies

March 22, 2025March 22, 2025 Master Builder

Cowboys Medium Builds Official Sets Western Western Sets

6755: Sheriff’s Lock-Up

July 3, 2024February 18, 2025 Master Builder

Exo-Force Official Sets Small Builds

7711: Sentry

August 11, 2023August 11, 2023 Master Builder

Aquashark Aquazone Aquazone Sets Official Sets Very Small Builds

6135: Spy Shark

March 21, 2023March 21, 2023 Master Builder

Castle Castle Sets Official Sets Royal Knights Small Builds

6036: Skeleton Surprise

February 28, 2023February 28, 2023 Master Builder

Classic Space Classic Space Sets Large Builds Official Sets

6972: Polaris I Space Lab

September 12, 2019November 21, 2023 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6802: Space Probe

October 10, 2022October 10, 2022 Master Builder

Classic Town Extra Large Builds Harbor Official Sets Town Town Sets Wrecker

6543: Sail N’ Fly Marina

July 22, 2022July 22, 2022 Master Builder

Fire Official Sets Small Builds Town Town Sets World City

7043: Firefighter

January 22, 2024January 22, 2024 Master Builder

Castle Castle Sets Lion Knights Official Sets Small Builds

6012: Siege Cart

September 24, 2024September 24, 2024 Master Builder

Medium Builds Official Sets Super Model Technic Technic Alternate Builds Technic Sets

120270: The Great Technic Racer

March 8, 2025March 8, 2025 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

There were once pictures of additional LEGO® builds on the back of set boxes. Written on the boxes was typically something about the endless building possibilities, "Build any of these exciting models with this set!" There were no instructions for these alternate builds, until now.

Sets

Adventurers
Aquazone
Belville
Building Set with People
Castle
Duplo
Fabuland
Harry Potter
Holiday and Event
LEGOLAND
Model Team
Pirates
Space
Star Wars
Technic
Town
Universal Building Set
Western
More Sets
Misc

Useful Links

Submit Instructions!
New Instructions
New Official Sets
New Alternate Builds
Minifigs
Very Small Builds (<35 pcs)
Small Builds (<100 pcs)
Medium Builds (<200 pcs)
Large Builds (<400 pcs)
Extra Large Builds (>400 pcs)
How BOTBB was Built

In Honor of 1526

The classic space set that never was.

Copyright © 2026 Back of the Box Builds. All rights reserved. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize, or endorse this site.